2026 Diamond C SDX312 40K PKG 48' (38+10) x 102" SD

2026 Diamond C SDX312 40K PKG 48' (38+10) x 102" SD

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  • Year 2026
  • Make Diamond C
  • Model SDX312 40K PKG
2026 Diamond C SDX312 40K PKG 48' (38+10) x 102" SD

2026 Diamond C SDX312 40K PKG 48' (38+10) x 102" SD

2026 Diamond C SDX312 40K PKG 48' (38+10) x 102" SD

This monster of a trailer is outfitted with triple 12K axles, an 18" low profile Engineered Beam frame, and GVWR up to 40,000 lb.

Features may include:

Straight Deck
  • The Straight Deck tail configuration includes 3" channel 96" Rear Slide-In Ramps that can be conveniently stowed away when not in use. Come with a single piece bumper with light protection.

Dimensions

Length 48'
Width 102"
Coupling 3" Ball - 40,000 lb Square Adjustable

Capacities

Axle Capacity, Rear 12,000 lb Heavy Duty, Oil Bath
Storage Capacity Lockable Neck Storage Box, 14" x 14" x 42" Underslung Box

Weights

GVWR 40,000 lb

Chassis

Chassis Crossmembers: 3" I-Beam on 16" Centers w/ Formed Gussets
Mainframe 18" Engineered Beam 2.0
Axle Count 3

Wheels & Tires

Tires, Rear Specification 235/80R16 14 Ply Radial, Dually

Color

Colors Onyx Black | Artic White | Scarlet Red | Cement Gray | Carbon Metallic Gray | Platinum Silver Metallic | Mocha Metallic | Dynamic Blue Metallic

Features

Features Ramps: 96" Rear Slide-In Ramps | Pull Type: 10' Step Deck w/ Slide-In Ramps | Jack: 2 - 25,000 lb Two Speed Drop-Leg Jacks | Floor: 2" Treated Lumber | Winch: Winch Mounting Plate | Lace Rail: 6" Channel Lace Rail | Stake Pockets: 2" x 3/8" Rub Rail w/ Stake Pockets & Pipe Spools | Steps: Front Retractable & Mid-Turn | Spare Mount: Under-Mount Spare Tray | Sway Control: Sway Control Pipe Standard

Suspension

Suspension Slipper Roller HD

Lights and Safety

Lighting All LED Lights
Harness Sealed Wiring Harness

Brakes

Brake System Type Electric Drum

Product Photography